title: Noninvasive diagnosis of coronary artery disease using two parameters extracted in an extrema circle of magnetocardiogram.
abstract: Magnetocardiography (MCG) is a complementary or alternative tool for noninvasive detection of coronary artery disease (CAD). The effectiveness of the tool for CAD diagnosis is generally evaluated by statistical analysis. In this study, we present a new method for screening CAD, in which two parameters including the curvature of magnetic field zero line and the area ratio of the extrema circle are extracted in magnetic field maps. 50 normal and 28 CAD subjects, whose signals were recorded by a 4-channel superconducting quantum interference device system, are analyzed with this method. The statistical results show a sensitivity and specificity of 71.4% and 72.0% respectively.
authors.forename: Yanhua
authors.initials: Y
authors.lastname: Wu
authors.forename: Jiaqi
authors.initials: J
authors.lastname: Gu
authors.forename: Tuo
authors.initials: T
authors.lastname: Chen
authors.forename: Weiyuan
authors.initials: W
authors.lastname: Wang
authors.forename: Shiqin
authors.initials: S
authors.lastname: Jiang
authors.forename: Weiwei
authors.initials: W
authors.lastname: Quan
mesh_terms: D000465:Algorithms; D003324:Coronary Artery Disease / Q000175:diagnosis* / Q000503:physiopathology; D003936:Diagnosis, Computer-Assisted / Q000379:methods*; D004562:Electrocardiography / Q000379:methods; D064368:Healthy Volunteers; D006801:Humans; D060526:Magnetic Fields; D053798:Magnetocardiography / Q000379:methods*; D008403:Mass Screening; D015233:Models, Statistical; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted